| /* |
| * ioctl32.c: Conversion between 32bit and 64bit native ioctls. |
| * Separated from fs stuff by Arnd Bergmann <arnd@arndb.de> |
| * |
| * Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com) |
| * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) |
| * Copyright (C) 2001,2002 Andi Kleen, SuSE Labs |
| * Copyright (C) 2003 Pavel Machek (pavel@suse.cz) |
| * Copyright (C) 2005 Philippe De Muyter (phdm@macqel.be) |
| * |
| * These routines maintain argument size conversion between 32bit and 64bit |
| * ioctls. |
| */ |
| |
| #include <linux/config.h> |
| #include <linux/compat.h> |
| #include <linux/videodev.h> |
| #include <linux/videodev2.h> |
| #include <linux/module.h> |
| #include <linux/smp_lock.h> |
| #include <media/v4l2-common.h> |
| |
| #ifdef CONFIG_COMPAT |
| |
| |
| struct video_tuner32 { |
| compat_int_t tuner; |
| char name[32]; |
| compat_ulong_t rangelow, rangehigh; |
| u32 flags; /* It is really u32 in videodev.h */ |
| u16 mode, signal; |
| }; |
| |
| static int get_video_tuner32(struct video_tuner *kp, struct video_tuner32 __user *up) |
| { |
| if(!access_ok(VERIFY_READ, up, sizeof(struct video_tuner32)) || |
| get_user(kp->tuner, &up->tuner) || |
| copy_from_user(kp->name, up->name, 32) || |
| get_user(kp->rangelow, &up->rangelow) || |
| get_user(kp->rangehigh, &up->rangehigh) || |
| get_user(kp->flags, &up->flags) || |
| get_user(kp->mode, &up->mode) || |
| get_user(kp->signal, &up->signal)) |
| return -EFAULT; |
| return 0; |
| } |
| |
| static int put_video_tuner32(struct video_tuner *kp, struct video_tuner32 __user *up) |
| { |
| if(!access_ok(VERIFY_WRITE, up, sizeof(struct video_tuner32)) || |
| put_user(kp->tuner, &up->tuner) || |
| copy_to_user(up->name, kp->name, 32) || |
| put_user(kp->rangelow, &up->rangelow) || |
| put_user(kp->rangehigh, &up->rangehigh) || |
| put_user(kp->flags, &up->flags) || |
| put_user(kp->mode, &up->mode) || |
| put_user(kp->signal, &up->signal)) |
| return -EFAULT; |
| return 0; |
| } |
| |
| struct video_buffer32 { |
| compat_caddr_t base; |
| compat_int_t height, width, depth, bytesperline; |
| }; |
| |
| static int get_video_buffer32(struct video_buffer *kp, struct video_buffer32 __user *up) |
| { |
| u32 tmp; |
| |
| if (!access_ok(VERIFY_READ, up, sizeof(struct video_buffer32)) || |
| get_user(tmp, &up->base) || |
| get_user(kp->height, &up->height) || |
| get_user(kp->width, &up->width) || |
| get_user(kp->depth, &up->depth) || |
| get_user(kp->bytesperline, &up->bytesperline)) |
| return -EFAULT; |
| |
| /* This is actually a physical address stored |
| * as a void pointer. |
| */ |
| kp->base = (void *)(unsigned long) tmp; |
| |
| return 0; |
| } |
| |
| static int put_video_buffer32(struct video_buffer *kp, struct video_buffer32 __user *up) |
| { |
| u32 tmp = (u32)((unsigned long)kp->base); |
| |
| if(!access_ok(VERIFY_WRITE, up, sizeof(struct video_buffer32)) || |
| put_user(tmp, &up->base) || |
| put_user(kp->height, &up->height) || |
| put_user(kp->width, &up->width) || |
| put_user(kp->depth, &up->depth) || |
| put_user(kp->bytesperline, &up->bytesperline)) |
| return -EFAULT; |
| return 0; |
| } |
| |
| struct video_clip32 { |
| s32 x, y, width, height; /* Its really s32 in videodev.h */ |
| compat_caddr_t next; |
| }; |
| |
| struct video_window32 { |
| u32 x, y, width, height, chromakey, flags; |
| compat_caddr_t clips; |
| compat_int_t clipcount; |
| }; |
| |
| static int native_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
| { |
| int ret = -ENOIOCTLCMD; |
| |
| if (file->f_op->unlocked_ioctl) |
| ret = file->f_op->unlocked_ioctl(file, cmd, arg); |
| else if (file->f_op->ioctl) { |
| lock_kernel(); |
| ret = file->f_op->ioctl(file->f_dentry->d_inode, file, cmd, arg); |
| unlock_kernel(); |
| } |
| |
| return ret; |
| } |
| |
| |
| /* You get back everything except the clips... */ |
| static int put_video_window32(struct video_window *kp, struct video_window32 __user *up) |
| { |
| if(!access_ok(VERIFY_WRITE, up, sizeof(struct video_window32)) || |
| put_user(kp->x, &up->x) || |
| put_user(kp->y, &up->y) || |
| put_user(kp->width, &up->width) || |
| put_user(kp->height, &up->height) || |
| put_user(kp->chromakey, &up->chromakey) || |
| put_user(kp->flags, &up->flags) || |
| put_user(kp->clipcount, &up->clipcount)) |
| return -EFAULT; |
| return 0; |
| } |
| |
| struct v4l2_clip32 |
| { |
| struct v4l2_rect c; |
| compat_caddr_t next; |
| }; |
| |
| struct v4l2_window32 |
| { |
| struct v4l2_rect w; |
| enum v4l2_field field; |
| __u32 chromakey; |
| compat_caddr_t clips; /* actually struct v4l2_clip32 * */ |
| __u32 clipcount; |
| compat_caddr_t bitmap; |
| }; |
| |
| static int get_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up) |
| { |
| if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_window32)) || |
| copy_from_user(&kp->w, &up->w, sizeof(up->w)) || |
| get_user(kp->field, &up->field) || |
| get_user(kp->chromakey, &up->chromakey) || |
| get_user(kp->clipcount, &up->clipcount)) |
| return -EFAULT; |
| if (kp->clipcount > 2048) |
| return -EINVAL; |
| if (kp->clipcount) { |
| struct v4l2_clip32 __user *uclips; |
| struct v4l2_clip __user *kclips; |
| int n = kp->clipcount; |
| compat_caddr_t p; |
| |
| if (get_user(p, &up->clips)) |
| return -EFAULT; |
| uclips = compat_ptr(p); |
| kclips = compat_alloc_user_space(n * sizeof(struct v4l2_clip)); |
| kp->clips = kclips; |
| while (--n >= 0) { |
| if (copy_in_user(&kclips->c, &uclips->c, sizeof(uclips->c))) |
| return -EFAULT; |
| if (put_user(n ? kclips + 1 : NULL, &kclips->next)) |
| return -EFAULT; |
| uclips += 1; |
| kclips += 1; |
| } |
| } else |
| kp->clips = NULL; |
| return 0; |
| } |
| |
| static int put_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up) |
| { |
| if (copy_to_user(&up->w, &kp->w, sizeof(up->w)) || |
| put_user(kp->field, &up->field) || |
| put_user(kp->chromakey, &up->chromakey) || |
| put_user(kp->clipcount, &up->clipcount)) |
| return -EFAULT; |
| return 0; |
| } |
| |
| static inline int get_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up) |
| { |
| if (copy_from_user(kp, up, sizeof(struct v4l2_pix_format))) |
| return -EFAULT; |
| return 0; |
| } |
| |
| static inline int put_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up) |
| { |
| if (copy_to_user(up, kp, sizeof(struct v4l2_pix_format))) |
| return -EFAULT; |
| return 0; |
| } |
| |
| static inline int get_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up) |
| { |
| if (copy_from_user(kp, up, sizeof(struct v4l2_vbi_format))) |
| return -EFAULT; |
| return 0; |
| } |
| |
| static inline int put_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up) |
| { |
| if (copy_to_user(up, kp, sizeof(struct v4l2_vbi_format))) |
| return -EFAULT; |
| return 0; |
| } |
| |
| struct v4l2_format32 |
| { |
| enum v4l2_buf_type type; |
| union |
| { |
| struct v4l2_pix_format pix; // V4L2_BUF_TYPE_VIDEO_CAPTURE |
| struct v4l2_window32 win; // V4L2_BUF_TYPE_VIDEO_OVERLAY |
| struct v4l2_vbi_format vbi; // V4L2_BUF_TYPE_VBI_CAPTURE |
| __u8 raw_data[200]; // user-defined |
| } fmt; |
| }; |
| |
| static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) |
| { |
| if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_format32)) || |
| get_user(kp->type, &up->type)) |
| return -EFAULT; |
| switch (kp->type) { |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| return get_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix); |
| case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| return get_v4l2_window32(&kp->fmt.win, &up->fmt.win); |
| case V4L2_BUF_TYPE_VBI_CAPTURE: |
| return get_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi); |
| default: |
| printk("compat_ioctl : unexpected VIDIOC_FMT type %d\n", |
| kp->type); |
| return -ENXIO; |
| } |
| } |
| |
| static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) |
| { |
| if(!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_format32)) || |
| put_user(kp->type, &up->type)) |
| return -EFAULT; |
| switch (kp->type) { |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| return put_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix); |
| case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| return put_v4l2_window32(&kp->fmt.win, &up->fmt.win); |
| case V4L2_BUF_TYPE_VBI_CAPTURE: |
| return put_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi); |
| default: |
| return -ENXIO; |
| } |
| } |
| |
| static inline int get_v4l2_standard(struct v4l2_standard *kp, struct v4l2_standard __user *up) |
| { |
| if (copy_from_user(kp, up, sizeof(struct v4l2_standard))) |
| return -EFAULT; |
| return 0; |
| |
| } |
| |
| static inline int put_v4l2_standard(struct v4l2_standard *kp, struct v4l2_standard __user *up) |
| { |
| if (copy_to_user(up, kp, sizeof(struct v4l2_standard))) |
| return -EFAULT; |
| return 0; |
| } |
| |
| struct v4l2_standard32 |
| { |
| __u32 index; |
| __u32 id[2]; /* __u64 would get the alignment wrong */ |
| __u8 name[24]; |
| struct v4l2_fract frameperiod; /* Frames, not fields */ |
| __u32 framelines; |
| __u32 reserved[4]; |
| }; |
| |
| static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up) |
| { |
| /* other fields are not set by the user, nor used by the driver */ |
| if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard32)) || |
| get_user(kp->index, &up->index)) |
| return -EFAULT; |
| return 0; |
| } |
| |
| static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up) |
| { |
| if(!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) || |
| put_user(kp->index, &up->index) || |
| copy_to_user(up->id, &kp->id, sizeof(__u64)) || |
| copy_to_user(up->name, kp->name, 24) || |
| copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) || |
| put_user(kp->framelines, &up->framelines) || |
| copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32))) |
| return -EFAULT; |
| return 0; |
| } |
| |
| static inline int get_v4l2_tuner(struct v4l2_tuner *kp, struct v4l2_tuner __user *up) |
| { |
| if (copy_from_user(kp, up, sizeof(struct v4l2_tuner))) |
| return -EFAULT; |
| return 0; |
| |
| } |
| |
| static inline int put_v4l2_tuner(struct v4l2_tuner *kp, struct v4l2_tuner __user *up) |
| { |
| if (copy_to_user(up, kp, sizeof(struct v4l2_tuner))) |
| return -EFAULT; |
| return 0; |
| } |
| |
| struct v4l2_buffer32 |
| { |
| __u32 index; |
| enum v4l2_buf_type type; |
| __u32 bytesused; |
| __u32 flags; |
| enum v4l2_field field; |
| struct compat_timeval timestamp; |
| struct v4l2_timecode timecode; |
| __u32 sequence; |
| |
| /* memory location */ |
| enum v4l2_memory memory; |
| union { |
| __u32 offset; |
| compat_long_t userptr; |
| } m; |
| __u32 length; |
| __u32 input; |
| __u32 reserved; |
| }; |
| |
| static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up) |
| { |
| |
| if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_buffer32)) || |
| get_user(kp->index, &up->index) || |
| get_user(kp->type, &up->type) || |
| get_user(kp->flags, &up->flags) || |
| get_user(kp->memory, &up->memory) || |
| get_user(kp->input, &up->input)) |
| return -EFAULT; |
| switch(kp->memory) { |
| case V4L2_MEMORY_MMAP: |
| break; |
| case V4L2_MEMORY_USERPTR: |
| { |
| compat_long_t tmp; |
| |
| if (get_user(kp->length, &up->length) || |
| get_user(tmp, &up->m.userptr)) |
| return -EFAULT; |
| |
| kp->m.userptr = (unsigned long)compat_ptr(tmp); |
| } |
| break; |
| case V4L2_MEMORY_OVERLAY: |
| if(get_user(kp->m.offset, &up->m.offset)) |
| return -EFAULT; |
| break; |
| } |
| return 0; |
| } |
| |
| static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up) |
| { |
| if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_buffer32)) || |
| put_user(kp->index, &up->index) || |
| put_user(kp->type, &up->type) || |
| put_user(kp->flags, &up->flags) || |
| put_user(kp->memory, &up->memory) || |
| put_user(kp->input, &up->input)) |
| return -EFAULT; |
| switch(kp->memory) { |
| case V4L2_MEMORY_MMAP: |
| if (put_user(kp->length, &up->length) || |
| put_user(kp->m.offset, &up->m.offset)) |
| return -EFAULT; |
| break; |
| case V4L2_MEMORY_USERPTR: |
| if (put_user(kp->length, &up->length) || |
| put_user(kp->m.userptr, &up->m.userptr)) |
| return -EFAULT; |
| break; |
| case V4L2_MEMORY_OVERLAY: |
| if (put_user(kp->m.offset, &up->m.offset)) |
| return -EFAULT; |
| break; |
| } |
| if (put_user(kp->bytesused, &up->bytesused) || |
| put_user(kp->field, &up->field) || |
| put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) || |
| put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) || |
| copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) || |
| put_user(kp->sequence, &up->sequence) || |
| put_user(kp->reserved, &up->reserved)) |
| return -EFAULT; |
| return 0; |
| } |
| |
| struct v4l2_framebuffer32 |
| { |
| __u32 capability; |
| __u32 flags; |
| compat_caddr_t base; |
| struct v4l2_pix_format fmt; |
| }; |
| |
| static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up) |
| { |
| u32 tmp; |
| |
| if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) || |
| get_user(tmp, &up->base) || |
| get_user(kp->capability, &up->capability) || |
| get_user(kp->flags, &up->flags)) |
| return -EFAULT; |
| kp->base = compat_ptr(tmp); |
| get_v4l2_pix_format(&kp->fmt, &up->fmt); |
| return 0; |
| } |
| |
| static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up) |
| { |
| u32 tmp = (u32)((unsigned long)kp->base); |
| |
| if(!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) || |
| put_user(tmp, &up->base) || |
| put_user(kp->capability, &up->capability) || |
| put_user(kp->flags, &up->flags)) |
| return -EFAULT; |
| put_v4l2_pix_format(&kp->fmt, &up->fmt); |
| return 0; |
| } |
| |
| static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input __user *up) |
| { |
| if (copy_from_user(kp, up, sizeof(struct v4l2_input) - 4)) |
| return -EFAULT; |
| return 0; |
| } |
| |
| static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input __user *up) |
| { |
| if (copy_to_user(up, kp, sizeof(struct v4l2_input) - 4)) |
| return -EFAULT; |
| return 0; |
| } |
| |
| static inline int get_v4l2_input(struct v4l2_input *kp, struct v4l2_input __user *up) |
| { |
| if (copy_from_user(kp, up, sizeof(struct v4l2_input))) |
| return -EFAULT; |
| return 0; |
| } |
| |
| static inline int put_v4l2_input(struct v4l2_input *kp, struct v4l2_input __user *up) |
| { |
| if (copy_to_user(up, kp, sizeof(struct v4l2_input))) |
| return -EFAULT; |
| return 0; |
| } |
| |
| #define VIDIOCGTUNER32 _IOWR('v',4, struct video_tuner32) |
| #define VIDIOCSTUNER32 _IOW('v',5, struct video_tuner32) |
| #define VIDIOCGWIN32 _IOR('v',9, struct video_window32) |
| #define VIDIOCSWIN32 _IOW('v',10, struct video_window32) |
| #define VIDIOCGFBUF32 _IOR('v',11, struct video_buffer32) |
| #define VIDIOCSFBUF32 _IOW('v',12, struct video_buffer32) |
| #define VIDIOCGFREQ32 _IOR('v',14, u32) |
| #define VIDIOCSFREQ32 _IOW('v',15, u32) |
| |
| /* VIDIOC_ENUMINPUT32 is VIDIOC_ENUMINPUT minus 4 bytes of padding alignement */ |
| #define VIDIOC_ENUMINPUT32 VIDIOC_ENUMINPUT - _IOC(0, 0, 0, 4) |
| #define VIDIOC_G_FMT32 _IOWR ('V', 4, struct v4l2_format32) |
| #define VIDIOC_S_FMT32 _IOWR ('V', 5, struct v4l2_format32) |
| #define VIDIOC_QUERYBUF32 _IOWR ('V', 9, struct v4l2_buffer32) |
| #define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32) |
| #define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32) |
| /* VIDIOC_OVERLAY is now _IOW, but was _IOWR */ |
| #define VIDIOC_OVERLAY32 _IOWR ('V', 14, compat_int_t) |
| #define VIDIOC_QBUF32 _IOWR ('V', 15, struct v4l2_buffer32) |
| #define VIDIOC_DQBUF32 _IOWR ('V', 17, struct v4l2_buffer32) |
| #define VIDIOC_STREAMON32 _IOW ('V', 18, compat_int_t) |
| #define VIDIOC_STREAMOFF32 _IOW ('V', 19, compat_int_t) |
| #define VIDIOC_ENUMSTD32 _IOWR ('V', 25, struct v4l2_standard32) |
| /* VIDIOC_S_CTRL is now _IOWR, but was _IOW */ |
| #define VIDIOC_S_CTRL32 _IOW ('V', 28, struct v4l2_control) |
| #define VIDIOC_G_INPUT32 _IOR ('V', 38, compat_int_t) |
| #define VIDIOC_S_INPUT32 _IOWR ('V', 39, compat_int_t) |
| #define VIDIOC_TRY_FMT32 _IOWR ('V', 64, struct v4l2_format32) |
| |
| enum { |
| MaxClips = (~0U-sizeof(struct video_window))/sizeof(struct video_clip) |
| }; |
| |
| static int do_set_window(struct file *file, unsigned int cmd, unsigned long arg) |
| { |
| struct video_window32 __user *up = compat_ptr(arg); |
| struct video_window __user *vw; |
| struct video_clip __user *p; |
| int nclips; |
| u32 n; |
| |
| if (!access_ok(VERIFY_READ, up, sizeof(struct video_window32))) |
| return -EFAULT; |
| |
| if (get_user(nclips, &up->clipcount)) |
| return -EFAULT; |
| |
| /* Peculiar interface... */ |
| if (nclips < 0) |
| nclips = VIDEO_CLIPMAP_SIZE; |
| |
| if (nclips > MaxClips) |
| return -ENOMEM; |
| |
| vw = compat_alloc_user_space(sizeof(struct video_window) + |
| nclips * sizeof(struct video_clip)); |
| |
| p = nclips ? (struct video_clip __user *)(vw + 1) : NULL; |
| |
| if (get_user(n, &up->x) || put_user(n, &vw->x) || |
| get_user(n, &up->y) || put_user(n, &vw->y) || |
| get_user(n, &up->width) || put_user(n, &vw->width) || |
| get_user(n, &up->height) || put_user(n, &vw->height) || |
| get_user(n, &up->chromakey) || put_user(n, &vw->chromakey) || |
| get_user(n, &up->flags) || put_user(n, &vw->flags) || |
| get_user(n, &up->clipcount) || put_user(n, &vw->clipcount) || |
| get_user(n, &up->clips) || put_user(p, &vw->clips)) |
| return -EFAULT; |
| |
| if (nclips) { |
| struct video_clip32 __user *u = compat_ptr(n); |
| int i; |
| if (!u) |
| return -EINVAL; |
| for (i = 0; i < nclips; i++, u++, p++) { |
| s32 v; |
| if (!access_ok(VERIFY_READ, u, sizeof(struct video_clip32)) || |
| !access_ok(VERIFY_WRITE, p, sizeof(struct video_clip32)) || |
| get_user(v, &u->x) || |
| put_user(v, &p->x) || |
| get_user(v, &u->y) || |
| put_user(v, &p->y) || |
| get_user(v, &u->width) || |
| put_user(v, &p->width) || |
| get_user(v, &u->height) || |
| put_user(v, &p->height) || |
| put_user(NULL, &p->next)) |
| return -EFAULT; |
| } |
| } |
| |
| return native_ioctl(file, VIDIOCSWIN, (unsigned long)vw); |
| } |
| |
| static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
| { |
| union { |
| struct video_tuner vt; |
| struct video_buffer vb; |
| struct video_window vw; |
| struct v4l2_format v2f; |
| struct v4l2_buffer v2b; |
| struct v4l2_framebuffer v2fb; |
| struct v4l2_standard v2s; |
| struct v4l2_input v2i; |
| struct v4l2_tuner v2t; |
| unsigned long vx; |
| } karg; |
| void __user *up = compat_ptr(arg); |
| int compatible_arg = 1; |
| int err = 0; |
| int realcmd = cmd; |
| |
| /* First, convert the command. */ |
| switch(cmd) { |
| case VIDIOCGTUNER32: cmd = VIDIOCGTUNER; break; |
| case VIDIOCSTUNER32: cmd = VIDIOCSTUNER; break; |
| case VIDIOCGWIN32: cmd = VIDIOCGWIN; break; |
| case VIDIOCGFBUF32: cmd = VIDIOCGFBUF; break; |
| case VIDIOCSFBUF32: cmd = VIDIOCSFBUF; break; |
| case VIDIOCGFREQ32: cmd = VIDIOCGFREQ; break; |
| case VIDIOCSFREQ32: cmd = VIDIOCSFREQ; break; |
| case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break; |
| case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break; |
| case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break; |
| case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break; |
| case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break; |
| case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break; |
| case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break; |
| case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break; |
| case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break; |
| case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break; |
| case VIDIOC_ENUMSTD32: realcmd = VIDIOC_ENUMSTD; break; |
| case VIDIOC_ENUMINPUT32: realcmd = VIDIOC_ENUMINPUT; break; |
| case VIDIOC_S_CTRL32: cmd = VIDIOC_S_CTRL; break; |
| case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break; |
| case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break; |
| case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break; |
| }; |
| |
| switch(cmd) { |
| case VIDIOCSTUNER: |
| case VIDIOCGTUNER: |
| err = get_video_tuner32(&karg.vt, up); |
| compatible_arg = 0; |
| |
| break; |
| |
| case VIDIOCSFBUF: |
| err = get_video_buffer32(&karg.vb, up); |
| compatible_arg = 0; |
| break; |
| |
| case VIDIOCSFREQ: |
| case VIDIOC_S_INPUT: |
| case VIDIOC_OVERLAY: |
| case VIDIOC_STREAMON: |
| case VIDIOC_STREAMOFF: |
| err = get_user(karg.vx, (u32 __user *)up); |
| compatible_arg = 0; |
| break; |
| |
| case VIDIOC_S_FBUF: |
| err = get_v4l2_framebuffer32(&karg.v2fb, up); |
| compatible_arg = 0; |
| break; |
| |
| case VIDIOC_G_FMT: |
| case VIDIOC_S_FMT: |
| case VIDIOC_TRY_FMT: |
| err = get_v4l2_format32(&karg.v2f, up); |
| compatible_arg = 0; |
| break; |
| |
| case VIDIOC_QUERYBUF: |
| case VIDIOC_QBUF: |
| case VIDIOC_DQBUF: |
| err = get_v4l2_buffer32(&karg.v2b, up); |
| compatible_arg = 0; |
| break; |
| |
| case VIDIOC_ENUMSTD: |
| err = get_v4l2_standard(&karg.v2s, up); |
| compatible_arg = 0; |
| break; |
| |
| case VIDIOC_ENUMSTD32: |
| err = get_v4l2_standard32(&karg.v2s, up); |
| compatible_arg = 0; |
| break; |
| |
| case VIDIOC_ENUMINPUT: |
| err = get_v4l2_input(&karg.v2i, up); |
| compatible_arg = 0; |
| break; |
| |
| case VIDIOC_ENUMINPUT32: |
| err = get_v4l2_input32(&karg.v2i, up); |
| compatible_arg = 0; |
| break; |
| |
| case VIDIOC_G_TUNER: |
| case VIDIOC_S_TUNER: |
| err = get_v4l2_tuner(&karg.v2t, up); |
| compatible_arg = 0; |
| break; |
| |
| case VIDIOCGWIN: |
| case VIDIOCGFBUF: |
| case VIDIOCGFREQ: |
| case VIDIOC_G_FBUF: |
| case VIDIOC_G_INPUT: |
| compatible_arg = 0; |
| }; |
| |
| if(err) |
| goto out; |
| |
| if(compatible_arg) |
| err = native_ioctl(file, realcmd, (unsigned long)up); |
| else { |
| mm_segment_t old_fs = get_fs(); |
| |
| set_fs(KERNEL_DS); |
| err = native_ioctl(file, realcmd, (unsigned long)&karg); |
| set_fs(old_fs); |
| } |
| if(err == 0) { |
| switch(cmd) { |
| case VIDIOCGTUNER: |
| err = put_video_tuner32(&karg.vt, up); |
| break; |
| |
| case VIDIOCGWIN: |
| err = put_video_window32(&karg.vw, up); |
| break; |
| |
| case VIDIOCGFBUF: |
| err = put_video_buffer32(&karg.vb, up); |
| break; |
| |
| case VIDIOC_G_FBUF: |
| err = put_v4l2_framebuffer32(&karg.v2fb, up); |
| break; |
| |
| case VIDIOC_G_FMT: |
| case VIDIOC_S_FMT: |
| case VIDIOC_TRY_FMT: |
| err = put_v4l2_format32(&karg.v2f, up); |
| break; |
| |
| case VIDIOC_QUERYBUF: |
| case VIDIOC_QBUF: |
| case VIDIOC_DQBUF: |
| err = put_v4l2_buffer32(&karg.v2b, up); |
| break; |
| |
| case VIDIOC_ENUMSTD: |
| err = put_v4l2_standard(&karg.v2s, up); |
| break; |
| |
| case VIDIOC_ENUMSTD32: |
| err = put_v4l2_standard32(&karg.v2s, up); |
| break; |
| |
| case VIDIOC_G_TUNER: |
| case VIDIOC_S_TUNER: |
| err = put_v4l2_tuner(&karg.v2t, up); |
| break; |
| |
| case VIDIOC_ENUMINPUT: |
| err = put_v4l2_input(&karg.v2i, up); |
| break; |
| |
| case VIDIOC_ENUMINPUT32: |
| err = put_v4l2_input32(&karg.v2i, up); |
| break; |
| |
| case VIDIOCGFREQ: |
| case VIDIOC_G_INPUT: |
| err = put_user(((u32)karg.vx), (u32 __user *)up); |
| break; |
| }; |
| } |
| out: |
| return err; |
| } |
| |
| long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg) |
| { |
| int ret = -ENOIOCTLCMD; |
| |
| if (!file->f_op->ioctl) |
| return ret; |
| |
| switch (cmd) { |
| case VIDIOCSWIN32: |
| ret = do_set_window(file, cmd, arg); |
| break; |
| case VIDIOCGTUNER32: |
| case VIDIOCSTUNER32: |
| case VIDIOCGWIN32: |
| case VIDIOCGFBUF32: |
| case VIDIOCSFBUF32: |
| case VIDIOCGFREQ32: |
| case VIDIOCSFREQ32: |
| case VIDIOC_QUERYCAP: |
| case VIDIOC_ENUM_FMT: |
| case VIDIOC_G_FMT32: |
| case VIDIOC_S_FMT32: |
| case VIDIOC_REQBUFS: |
| case VIDIOC_QUERYBUF32: |
| case VIDIOC_G_FBUF32: |
| case VIDIOC_S_FBUF32: |
| case VIDIOC_OVERLAY32: |
| case VIDIOC_QBUF32: |
| case VIDIOC_DQBUF32: |
| case VIDIOC_STREAMON32: |
| case VIDIOC_STREAMOFF32: |
| case VIDIOC_G_PARM: |
| case VIDIOC_G_STD: |
| case VIDIOC_S_STD: |
| case VIDIOC_G_TUNER: |
| case VIDIOC_S_TUNER: |
| case VIDIOC_ENUMSTD: |
| case VIDIOC_ENUMSTD32: |
| case VIDIOC_ENUMINPUT: |
| case VIDIOC_ENUMINPUT32: |
| case VIDIOC_G_CTRL: |
| case VIDIOC_S_CTRL32: |
| case VIDIOC_QUERYCTRL: |
| case VIDIOC_G_INPUT32: |
| case VIDIOC_S_INPUT32: |
| case VIDIOC_TRY_FMT32: |
| ret = do_video_ioctl(file, cmd, arg); |
| break; |
| |
| /* Little v, the video4linux ioctls (conflict?) */ |
| case VIDIOCGCAP: |
| case VIDIOCGCHAN: |
| case VIDIOCSCHAN: |
| case VIDIOCGPICT: |
| case VIDIOCSPICT: |
| case VIDIOCCAPTURE: |
| case VIDIOCKEY: |
| case VIDIOCGAUDIO: |
| case VIDIOCSAUDIO: |
| case VIDIOCSYNC: |
| case VIDIOCMCAPTURE: |
| case VIDIOCGMBUF: |
| case VIDIOCGUNIT: |
| case VIDIOCGCAPTURE: |
| case VIDIOCSCAPTURE: |
| |
| /* BTTV specific... */ |
| case _IOW('v', BASE_VIDIOCPRIVATE+0, char [256]): |
| case _IOR('v', BASE_VIDIOCPRIVATE+1, char [256]): |
| case _IOR('v' , BASE_VIDIOCPRIVATE+2, unsigned int): |
| case _IOW('v' , BASE_VIDIOCPRIVATE+3, char [16]): /* struct bttv_pll_info */ |
| case _IOR('v' , BASE_VIDIOCPRIVATE+4, int): |
| case _IOR('v' , BASE_VIDIOCPRIVATE+5, int): |
| case _IOR('v' , BASE_VIDIOCPRIVATE+6, int): |
| case _IOR('v' , BASE_VIDIOCPRIVATE+7, int): |
| ret = native_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); |
| break; |
| default: |
| v4l_print_ioctl("compat_ioctl32", cmd); |
| } |
| return ret; |
| } |
| #else |
| long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg) |
| { |
| return -ENOIOCTLCMD; |
| } |
| #endif |
| EXPORT_SYMBOL_GPL(v4l_compat_ioctl32); |
| |
| MODULE_LICENSE("GPL"); |
